Answer:
x = 7
Explanation:
We know that adding TUW and WUV will give TUV.
So you can substitute the given equations for each and form a lengthy equation
5x + 3 + 10x -5 = 17x - 16
Move all the variables to one side, and the constants to the other
5x + 10x - 17x = -16 - 3 + 5
Simplify!
-2x = -14
x = 7